Isothermal packaging device for heat-sensitive products

ABSTRACT

The invention relates to an isothermal packaging device, comprising a plurality of thermal insulation panels arranged to form a box ( 1 ) of parallelepipedic form, with:
         a front face ( 10 ) mobile relative to peripheral faces ( 30, 40, 50, 60 ) so as to form a main opening allowing access to an internal space of the box for the packaging of products,   at least one of the peripheral faces ( 30, 40, 50, 60 ) comprising at least one peripheral housing designed to receive at least one thermal stabilisation element ( 80 ),   a rear face ( 20 ) opposite the front face and also comprising at least one rear housing designed to receive at least one thermal stabilisation element ( 80 ), and   a rear opening formed along an edge between the rear face ( 20 ) and one of the peripheral faces, and provided to allow access to the rear housing of the rear face ( 20 ) from the exterior of the box ( 1 ), with a removable obstruction element ( 70 ) designed to close said lateral opening.

FIELD OF THE INVENTION

The present invention relates to packaging and transport devices for heat-sensitive products, and more precisely isothermal boxes designed to keep said products in determined temperature conditions.

PRIOR ART

In the logistics field, more precisely in the field of product transport and storage, a certain number of containers has been developed with the aim of protecting said products from physical damage. However, products of food or pharmaceutical type not only need protection from shock but also need to be kept in stable temperature conditions during transportation and/or storage. In fact, such thermal stability is necessary to prevent products from being damaged and made unusable, whether this damage is apparent or not. Such products sensitive to variations in temperature are so—called heat—sensitive.

The field of pharmacy is the most representative example of these constraints on thermal stability, since medications absolutely must be kept in determined temperature ranges to guarantee their effect. Medications are generally contained in relatively fine and fragile packaging which are not adapted to ensure the required thermal stability, and it is therefore necessary to collect these medications in specific containers which at the same time ensure the physical integrity of said medications and their thermal stability during transport and/or storage time.

Today there are numerous solutions for isothermal boxes which keep a particular product in a determined temperature range over a more or less considerable time. These isothermal boxes, irrespective of their size, generally comprise an external envelope made of cardboard, for example, which defines the external volume of the box, this external envelope enclosing a certain number of thermal insulation panels made of various materials (such as polystyrene, polyurethane, etc.), these thermal insulation panels being arranged in the external envelope to form a packaging space for positioning products, this packaging space being insulated thermally. Also, housings for receiving thermal stabilisers for maintaining determined temperature conditions inside the packaging space are provided inside the isothermal box, these stabilisers being selected as a function of external conditions, transport especially.

The German utility model published on Sep. 6 2001 under the reference DE 201 08 553 describes an example of isothermal box for keeping products cold, especially by way of thermal stabilisers integrated into its structure. This isothermal box has a particular arrangement, of small volume, enabling it to be portable by way of a carrying handle.

However, the various arrangements proposed today in the placement of thermal insulation panels and/or the positioning of thermal stabilisers are poorly adapted to large-volume packaging boxes of several hundreds of litres.

In particular, one of the major disadvantages of large-capacity isothermal containers is thermal stabilisation. In fact, since the packaging volume of products is important, it is difficult to maintain a uniform stabilised temperature inside said volume, this being especially because of the configurations of containers and the placement of thermal stabilisers.

Another disadvantage of existing isothermal containers relates to their handling with respect to their assembly prior to the heat-sensitive products being placed in the packaging space, but also their handling during the transport phase, in particular when it is necessary to replace the thermal stabilisers to ensure maintenance of temperature of products long-term.

Large-capacity isothermal containers of today also have a certain number of disadvantages as to their storage when not being used, but also for their transport under vacuum.

An aim of the present invention is therefore to provide a solution for packaging products to keep them in a determined temperature range, this solution resolving at least one of the above disadvantages.

In particular, an aim of the present invention is to propose a packaging device of products in isothermal conditions having increased reliability, especially when the isothermal container has a large capacity, with a packaging space of several hundreds of litres.

Yet another aim of the present invention is to propose a packaging device of products in isothermal conditions with improved handling, especially as relates to the assembly and/or disassembly, use during transport, and also storage under vacuum.

EXPLANATION OF THE INVENTION

For this purpose, a packaging device for products designed to keep said products in a determined temperature range is proposed, comprising

-   -   a plurality of thermal insulation panels arranged to form a box         of parallelepipedic form, said box having a front face, a rear         face opposite the front face, and four faces perpendicular in         pairs and opposite in pairs and each extending between the front         face and the rear face;     -   said front face being mobile relative to the peripheral faces to         form a main opening allowing access to an internal space of the         box for the packaging of products,     -   at least one of the peripheral faces comprising at least one         peripheral housing designed to receive at least one thermal         stabilisation element,     -   the rear face also comprising at least one rear housing designed         to receive at least one thermal stabilisation element,         characterised in that the device comprises at least one rear         opening formed along an edge between the rear face and one of         the peripheral faces, said rear opening being provided for allow         access to the rear housing of the rear face from the exterior of         the box, and in that the device comprises a removable         obstruction element designed to close said lateral opening.

The thermal insulation panels are preferably arranged to allow access to the housings designed to receive the thermal stabilisation elements without opening of the internal packaging space of the products. Such a structure is particularly advantageous since it participates in maintaining a uniform stabilised temperature inside the product packaging volume. In fact, this replaces any of the thermal stabilisers and keeps products stored in the packaging device insulated from the external environment. In this way stored products do not undergo any significant difference or variation in temperature which could be harmful to the latter.

Preferred but non-limiting aspects of this device, taken alone or in combination, are the following:

-   -   the thermal insulation panels are separate from each other and         designed to be joined together, such that the box is fully         disassemblable.     -   the device comprises a plurality of sheathed thermal insulation         panels, each sheathed thermal insulation panel comprising an         external panel designed to form the external surface of the box,         and an internal panel designed to form the internal surface of         the box, the external panel and the internal panel being         connected by a plurality of spacers arranged to form at least         one sheath for the housing of at least one thermal stabilisation         element.     -   the rear face comprises at least one sheathed thermal insulation         panel oriented such that the rear housing formed by the sheath         is accessible from the rear opening of the box.     -   at least one of the peripheral faces comprises at least one         sheathed thermal insulation panel oriented such that the         peripheral housing formed by the sheath is accessible from the         main opening of the box.     -   the front face comprises an intermediate panel designed to be         positioned between the four peripheral faces to block access         inside the box and leaving free access to the peripheral housing         of the peripheral face.     -   the intermediate panel comprises at least one front housing         designed to receive at least one thermal stabilisation element,         with access to said front housing being provided at the surface         of the intermediate panel designed to be oriented towards the         exterior of the box.     -   one of the peripheral faces constitutes a lower face as support         base of the box, the two peripheral faces adjacent to the lower         face comprising lateral faces of the box, and the peripheral         face opposite the lower face comprising the upper face of the         box, the rear opening being a lateral longitudinal opening         arranged along the edge between the rear face and a lateral         face.     -   in the device:         -   the lateral faces, the upper face and the rear face each             comprise at least one sheathed thermal insulation panel,         -   the lower face comprises a support panel, and         -   the front face comprises an intermediate obstruction panel             for access inside the box and an external panel provided to             cover the intermediate panel and block access to the             peripheral housings.     -   the device comprises two rear openings, each rear opening being         a lateral longitudinal opening arranged along the edge between         the rear face and one of the two lateral faces.     -   the device also comprises a handling pallet designed to be         positioned below the support panel of the lower face, the pallet         comprising housings for receiving at least one thermal         stabilisation element.

DESCRIPTION OF THE FIGURES

Other characteristics and advantages of the invention will emerge from the following description which is purely illustrative and non-limiting and must be considered in conjunction with the attached drawings, in which:

FIG. 1 is an exploded view of the different elements constituting the isothermal box according to the invention:

FIG. 2 is a perspective view of the isothermal box according to the invention during assembly;

FIG. 3 is a perspective view of the isothermal box according to the invention during transportation of products.

DETAILED DESCRIPTION OF THE INVENTION

As is illustrated in the figures, the packaging device according to the invention comprises a box 1 of parallelepipedic form which has a face for loading products. This face comprises a removable obstruction element relative to the other faces comprising the box so as to allow access to the interior of the box, that is, in the packaging space of products to be kept in stabilised temperature conditions.

The box comprises thermal insulation panels which are arranged relative to each other to form said parallelepipedic box. Provided inside the box also is a certain number of housings arranged to receive thermal stabilisers, the purpose of which is to keep the internal packaging volume in a determined temperature range, especially as a function of external storage and/or transport conditions.

The proposed configuration described in detail hereinbelow for the isothermal box 1 enables access to the housings designed to receive the thermal stabilisers without opening of the internal packaging space of the products. Accordingly, this limits all thermal perturbations at the level of the products stored inside the box, especially in the event of replacement of thermal stabilisers during transporting of the isothermal box 1.

To guarantee optimal thermal stability, housings designed to receive thermal stabilisers at the level of the face opposite the loading face are provided in the isothermal box according to the invention to have a maximum of faces of the box comprising thermal stabilisation elements.

In the case of large-capacity isothermal boxes, that is, those having a storage volume of several hundreds of litres, the product loading face is preferably the front face of the box so that products can be loaded horizontally, at ground level, rather than from above. In this case, housings for thermal stabilisers are provided on the rear face of the box which is the face opposite the loading face.

According to the invention, an access hatch is provided on the rear part of the box which positions thermal stabilisers in the housings provided on the rear face of the box without accessing the internal packaging volume of products, in particular without having to use the main access path of the box via the front face, which would require passing through the internal packaging space. More precisely, the access hatch corresponds to an opening arranged in the box, for example at the level of the lateral edge between the rear face and one of the lateral faces of the box. Such an opening, preferably longitudinal in form, therefore enables inserting of thermal stabilisers inside the box in the housings provided for this purpose on the rear face. An obstruction element is also provided designed to close the lateral positioning opening of the rear thermal stabilisers.

Such a configuration therefore provides housings on each of the peripheral faces of the isothermal box 1, these housings being configured to be able to receive thermal stabilisers designed to be loaded from the front face of the box. The front face also preferably comprises as such housings designed to receive thermal stabilisers such that the isothermal box 1 according to the invention can comprise thermal stabilisers on each of the faces which comprise the latter, thereby ensuring increased thermal stability as well as uniformity of thermal regulation for products stored in the internal packaging space.

This configuration is particularly advantageous since it enables loading of the thermal stabilisers without having to access the internal packaging space. In fact, the stabilisers of the peripheral faces can be positioned from the front face. The stabilisers of the front face are positioned when the main access path is closed. And finally, the rear thermal stabilisers are positioned at the level of the rear face by using the access hatch arranged to the rear of the box.

A particular embodiment of the invention will now be described in reference to FIGS. 1 to 3, the latter being non-limiting, the ideas presented earlier being adapted to other particular configurations.

In reference to FIG. 1, the packaging device as presented comprises a plurality of thermal insulation panels designed to form the isothermal box 1. This isothermal box 1 has a parallelepipedic form and comprises a front face 10, a rear face 20 opposite the front face 10. Also this isothermal box 1 comprises four peripheral faces perpendicular in pairs, parallel in pairs, and extending between the front face 10 and the rear face 20. More precisely, the isothermal box 1 comprises a lower face 30 forming the base of the isothermal box, that is, corresponding to the support face of the isothermal box 1. Opposite this lower face 30 and extending also between the front face 10 and the rear face 20 is provided an upper face 40 forming the top of the isothermal box 1. Finally, the isothermal box 1 comprises two opposite lateral walls 50 and 60 each extending between the front face 10 and the rear face 20 and between the lower face 30 and the upper face 40.

In the embodiment presented in FIGS. 1 to 3, each of the faces comprising the isothermal box 1 comprises housings designed to receive a thermal stabilisation element 80 provided to maintain a stable temperature inside the internal packaging space for storing heat-sensitive products.

The thermal insulation panels used to form each of the faces comprising the isothermal box 1 can take various forms. Sheathed thermal insulation panels can be provided for example having a structure which at the same time ensures the necessary thermal insulation, thermal regulation by receipt of thermal stabilisers 80, and also giving the isothermal box increased mechanical resistance.

In reference to FIG. 1, the rear face 20, the upper face 40, and the lateral faces 50 and 60 comprise such a sheathed thermal insulation panel having the following structure.

Each of the sheathed thermal insulation panels comprises an external panel (21, 41, 51, 61) designed to form the external surface of the corresponding face, and therefore forming the external envelope of the isothermal box 1. In this respect, it is coated with protective material, of Kraft or cardboard type, for example. This external panel can also have an insulation function. The external panel can therefore be made of insulating material coated in protective material. The insulating material can be for example polyurethane, polystyrene, extruded expanded polystyrene (XPS for <<extruded polystyrene>>), polyethylene, or be made from panels under vacuum (VIP as per the English acronym <<Vacuum Insulated Panels>>).

Each sheathed thermal insulation panel also comprises at least one internal panel (22, 42, 52, 62) designed to form the internal surface of each of the corresponding faces, and therefore defining the internal packaging space of the products of the isothermal box 1. These internal panels (22, 42, 52, 62) are formed in insulating materials selected as a function of the conditions for storing products and preferred temperature ranges. Such internal insulation panels (22, 42, 52, 62) can for example be made of materials based on polystyrene, polyurethane, polyethylene, etc. The internal panels could for example be made based on extruded expanded polystyrene (XPS for <<extruded polystyrene>>), or be made by panels under vacuum (VIP according to the English acronym <<Vacuum Insulated Panels>>).

Finally, each of the sheathed thermal insulation panels comprises spacers (23, 43, 53, 63) arranged between the external panel (21, 41, 51, 61) and the internal panel (22, 42, 52, 62) of the corresponding panel and being arranged relative to each other to form sheaths for the housing of thermal stabilisers 80. These spacers (23, 43, 53, 63) are preferably longitudinal in form and are distributed over the external and internal panels to ensure a certain rigidity to the pertinent sheathed thermal insulation panels. Also, these spacers (23, 43, 53, 63) ensure increased mechanical resistance of the whole isothermal box 1 when the sheathed thermal insulation panels are assembled together to form the different faces of the isothermal box 1. This configuration of sheathed thermal insulation panels with the use of transversal spacers is also particularly advantageous for taking up thermal stabilisers 80 which can have a relatively heavy weight. In fact, the sheaths created by the spacers form slides inside which the thermal stabilisers 80 can be inserted and translated.

The spacers are also preferably made of insulating material, for example based on polystyrene, polyurethane, polyethylene, etc. According to a preferred embodiment, the sheathed thermal insulation panels have an external panel made of polyurethane coated in Kraft, spacers and an external panel made of extruded expanded polystyrene XPS.

In the embodiment presented in FIG. 1, the lower face 30 of the isothermal box 1 has no such sheathed thermal insulation panel. A single external panel 31 designed to form the support and insulation of the isothermal box 1 without housings to receive thermal stabilisers being provided is in fact provided. To this end, the lower face 30 of the isothermal box 1 is generally positioned on a handling element of the isothermal box 1, such as a pallet 2 illustrated in FIG. 3. In this case, housings for the positioning of thermal stabilisers 80 are generally provided within the handling pallet 2 such that it is not necessary to provide such housings in the lower face 30 of the isothermal box 1. But it is possible to provide for the lower face 30 of the isothermal box 1 to also comprise one or more sheathed thermal insulation panels such as presented earlier.

The front panel 10 of the isothermal box 1 could also be in the form of a sheathed thermal insulation panel which would be positioned in support on the edges of the different peripheral faces (30, 40, 50, 60) of the isothermal box 1. However, according to the preferred embodiment, illustrated in the figures, the front face 10 of the isothermal box 1 comprises two separate panels 11 and 12 ensuring dual blocking of the main access of the isothermal box 1.

In fact, as is illustrated in FIGS. 1 and 2, the front face 10 first comprises an intermediate panel 12 designed to be positioned between the different peripheral faces (30, 40, 50, 60) of the isothermal box 1 so as to block access to the internal packaging space delimited by the internal panels (22, 42, 52, 62) and the panel 31 of the peripheral faces and of the rear face of the isothermal box 1. The surface towards the exterior of the intermediate panel 12 of the front face 10 preferably comprises housings 13 provided to receive thermal stabilisers 80 to ensure thermal regulation at the level of the front face 10.

Also, the front face 10 of the isothermal box 1 comprises an external panel 11 designed to be positioned on the internal panel 12 to cover it and also to cover access to the different housings formed by the sheaths of the sheathed thermal insulation panels comprising the peripheral faces of the isothermal box 1. In this respect, the external panel 11 has dimensions substantially greater than the intermediate panel 12 of the front face 10.

As is evident from the preceding description, each of the faces of the isothermal box 1 is made from flat thermal insulation panels independent of each other, which at the same time makes handling and storage of the isothermal box 1 much easier. In fact, when the isothermal box 1 is not being used, that is, when it is not necessary to transport or store heat-sensitive products, the latter can be stored or transported fully disassembled, the thermal insulation panels being simply stacked on each other for this purpose. Such a disassembled arrangement provides a particularly advantageous gain in volume for storage but also for transport of the elements comprising the isothermal box 1.

The fact that the different faces of the isothermal box 1 comprise flat panels also makes its assembly and disassembly easier. In fact, as illustrated in FIG. 1, assembly of the isothermal box 1 consists only of assembling the panels relative to each other, and optional fastening of the whole to maintain a certain cohesion.

Therefore, the panel 31 forming the lower face can initially be positioned for example, that is, the base of the isothermal box 1. The sheathed thermal insulation panels defining the lateral faces and the sheathed thermal insulation panel defining the rear face 20 are then positioned around this lower panel 31. These different panels cooperate with each other and with the lower panel 31 by all appropriate fastening means, for example by cooperation in shape between the different panels, or simply by the use of adapted fastening means (adhesive, screws, etc.). Once the lateral faces 50 and 60 and the rear face 20 are positioned around the lower face 30, the upper face is positioned between the lateral faces 50 and 60 and the rear face 20 defines a parallelepipedic box with a single open face. The sheathed thermal insulation panel of the upper face 40, also cooperates with the panels adjacent to it, with fastening means also provided to hold these panels. A set of straps 90 can also complement or replace any system for connecting the panels. Once this assembly is complete, the result is an isothermal box 1 such as shown in FIG. 2, which has a main access path to the internal packaging space of the products through the front face of the isothermal box 1.

As is evident from FIG. 2, openings are provided at the level of the edges between the rear face 20 and the lateral faces 50 and 60 for access to the receiving sheaths of the thermal stabilisers 80 of the sheathed thermal insulation panel comprising the rear face 20 of the isothermal box 1. These lateral openings are preferably arranged on either side of the rear face 20 but it could be feasible to form a single passage since the latter ensures access to the housings formed by the sheaths of the sheathed thermal insulation panel of the rear face 20. These lateral openings can for example be formed directly in the lateral panels forming the lateral faces 50 and 60 of the isothermal box 1.

Obstruction elements 70 of these lateral openings are also provided to constitute access hatches to the sheaths of the sheathed thermal insulation panel of the rear face 20. Such obstruction elements 70 can for example take the form of longitudinal bars (71; 72) having a form corresponding to the opening arranged along the edge between the rear face 20 and one of the lateral faces 50 and 60. Even more preferably, the longitudinal bars (71; 72) are provided to be positioned flush relative to the external faces of the external panels (51; 61) of the lateral faces (50; 60).

These lateral openings are positioned at the level of the rear face 20 of the isothermal box 1, allowing access to the housings of the thermal stabilisers designed to be positioned on the rear face. If it is imperative to have at least one access hatch at the level of the rear face 20 for loading and unloading of the thermal stabilisers 80 on this rear face 20 without having to access the internal packaging space of the products, other access hatches can also be provided in the isothermal box 1 for also making easier the placing and removing of thermal stabilisers 80 positioned on the other faces comprising the isothermal box 1.

Once the isothermal box 1 has been installed, that is, when the different lateral faces and the rear face are joined together, the isothermal box 1 is ready to receive the heat-sensitive products designed to be kept in a determined temperature range.

Access to the different housings designed to receive the thermal stabilisers 80 is very easy, since the housings of the rear face 20 are accessible by means of one of the two lateral access hatches, once one of the longitudinal bars (71, 72) has been removed. In the same way, it is simple to position the thermal stabilisers 80 in the sheaths arranged on the peripheral faces of the isothermal box 1, with access to these housings being made from the front face 10 of the isothermal box 1.

As is seen in FIG. 2, the embodiment presented loads the thermal stabilisers 80 horizontally, which is highly advantageous in terms of handling. In fact, the isothermal box 1 presented is designed to pack a large volume of products, the internal packaging space having a volume of several hundreds of litres. Due to this, the dimensions of the isothermal box and the dimensions of the thermal stabilisers are considerable, as is the weight of said thermal stabilisers. It is therefore particularly advantageous to be able to position and withdraw the thermal stabilisers horizontally rather than vertically. By way of a non-limiting example, the isothermal box can have a length and a width of between 1 metre and 4 metres, and a height from 1 metre to 2 metres. The thermal stabilisers can weigh of the order of 2 kg to 20 kg.

Once the thermal stabilisers 80 of the peripheral faces and of the rear face are positioned in the isothermal box 1, the products to be packaged can be put in place in the internal packaging space and the front face 10 is then positioned to close this internal packaging space. More precisely, the intermediate panel 12 of the front face is positioned so as to block the main access of the internal packaging space. As shown above, the intermediate panel 12 comprises housings 13 for positioning thermal stabilisers 80 such that the front face also comprises thermal stabilisation means. Once these thermal stabilisers 80 are positioned in the housing 13 provided on the front face 10, the external panel 11 of the front face is positioned to totally block the isothermal box 1.

Once all the thermal insulation panels are positioned to form the isothermal box 1, the latter can be connected by any appropriate means. Straps 90 can be used for example, as illustrated in FIG. 3. It is of course possible to use any fastening means which would be adapted.

One of the advantages presented by the isothermal box 1 described here is the possibility of replacing the thermal stabilisers 80 positioned in the different housings provided inside the isothermal box 1 without opening the internal packaging space receiving the heat-sensitive products. In fact, if it wee to prove necessary to replace the different thermal stabilisers 80 used in the isothermal box 1, it suffices to withdraw the external panel 11 from the front face at the same time to access the housings of the front face and the peripheral faces of the isothermal box. The presence of the intermediate panel 12 at the level of the main access of the internal packaging space keeps this internal packaging space closed. In the same way, it is possible to change the thermal stabilisers 80 provided at the level of the rear face 20 by means of the access hatches 70 arranged at the level of the rear phase 20 of the isothermal box 1.

This configuration is particularly advantageous since it ensures that the product remains thermally insulated, by means of the different internal insulating panels (12, 22, 31, 42, 52, 62) which define the internal packaging space.

The structure and method of assembly proposed for the isothermal box 1 also optimises preparation time and secures and ensures better respect of the cold chain. In fact, this assembly method if necessary dissociates the assembly operation time of the isothermal box 1 from the preparation operation time for shipping. The structure of the isothermal box 1 can also be prepared the day before, the heat-sensitive products can be inserted and the isothermal box stored in a cool chamber to maintain temperature, then the thermal stabilisers 80 can be inserted at the last moment just before shipping to get the longest possible autonomy. The product is protected by the internal thermal insulation panels at the time of insertion of the thermal stabilisers 80 in their respective housings.

Because the housings are preferably formed by sheaths arranged on the different thermal insulation panels comprising the faces of the isothermal box 1, it is preferable to use thermal stabilisers 80 having a longitudinal form to make it easy for them to slide in these housings. Also, if the isothermal box 1 is very large, it is possible to use thermal stabilisers 80 joined together by any connection means so they can be attached to each other, especially for when they are taken out of said housings from a single end of the sheath.

Thermal stabilisers 80 are generally rigid or semi-rigid briquettes formed by a plastic envelope (for example high-density polyethylene—PEHD) containing a eutectic agent to ensure the preferred thermal stabilisation function.

The reader will have understood that numerous modifications can be made without materially departing from the new ideas and advantages described here. Consequently, all the modifications of this type are designed to be incorporated inside the scope of the packaging device presented. 

1. A device for packaging of products designed to keep said products in a determined temperature range, comprising a plurality of thermal insulation panels arranged to form a box (1) of parallelepipedic form, said box having a front face (10), a rear face (20) opposite the front face, and four peripheral faces (30, 40, 50, 60) perpendicular in pairs and facing each-other in pairs and each extending between the front face (10) and the rear face (20); said front face (10) being mobile relative to the peripheral faces (30, 40, 50, 60) so as to form a main opening allowing access to an internal space of the box for the packaging of products, at least one of the peripheral faces (30, 40, 50, 60) comprising at least one peripheral housing designed to receive at least one thermal stabilisation element (80), the rear face (20) comprising also at least one rear housing designed to receive at least one thermal stabilisation element (80), the device comprising at least one rear opening formed along an edge between the rear face (20) and one of the peripheral faces, said rear opening being provided to allow access to the rear housing of the rear face (20) from the exterior of the box (1), and the device further comprising a removable obstruction element (70) designed to close said lateral opening, wherein the thermal insulation panels are arranged so as to allow access to the housings designed to receive the thermal stabilisation elements (80) without opening the internal space for packaging the products.
 2. The device as claimed in claim 1, wherein the thermal insulation panels are separate from each other and designed to be assembled together such that the box (1) is fully disassemblable.
 3. The device as claimed in claim 1, comprising a plurality of sheathed thermal insulation panels, each sheathed thermal insulation panel comprising an external panel designed to form the external surface of the box (1), and an internal panel designed to form the internal surface of the box, the external panel and the internal panel being connected by a plurality of spacers arranged to form at least one sheath for the housing of at least one thermal stabilisation element.
 4. The device as claimed in claim 3, wherein the rear face (20) comprises at least one sheathed thermal insulation panel oriented such that the rear housing formed by the sheath is accessible from the rear opening of the box (1).
 5. The device as claimed in claim 1, wherein at least one of the peripheral faces comprises at least one sheathed thermal insulation panel oriented such that the peripheral housing formed by the sheath is accessible from the main opening of the box, and the front face (10) comprises an intermediate panel (12) designed to be positioned between the four peripheral faces to block access inside the box (1) while leaving free access to the peripheral housing of the peripheral face.
 6. The device as claimed in claim 5, wherein the intermediate panel (12) comprises at least one front housing designed to receive at least one thermal stabilisation element (80), with access to said front housing being provided at the surface of the intermediate panel (12) designed to be oriented towards the exterior of the box.
 7. The device as claimed in claim 1, wherein one of the peripheral faces constitutes a lower face (30) as support base of the box (1), the two peripheral faces adjacent to the lower face (30) comprising lateral faces (50, 60) of the box (1), and the peripheral face opposite the lower face (30) comprising the upper face (40) of the box, the rear opening being a lateral longitudinal opening arranged along the edge between the rear face (20) and a lateral face (50, 60).
 8. The device as claimed in claim 7, comprising a plurality of sheathed thermal insulation panels, each sheathed thermal insulation panel comprising an external panel designed to form the external surface of the box, and an internal panel designed to form the internal surface of the box, the external panel and the internal panel being connected by a plurality of spacers arranged to form at least one sheath for the housing of at least one thermal stabilisation element, wherein: the lateral faces (50, 60), the upper face (40) and the rear face (20) each comprise at least one sheathed thermal insulation panel, the lower face (30) comprises a support panel (31), and the front face (10) comprises an intermediate obstruction panel (12) of access inside the box (1) and an external panel (11) provided to cover the intermediate panel (11) and to block access to the peripheral housings.
 9. The device as claimed in claim 7, comprising two rear openings (71, 72), each rear opening being a lateral longitudinal opening arranged along the edge between the rear face (20) and one of the two lateral faces (50, 60).
 10. The device as claimed in claim 7, further comprising a handling pallet (2) designed to be positioned under the support panel (31) of the lower face (30), the pallet (2) comprising housings for receiving at least one thermal stabilisation element. 